diff --git a/sys/src/cmd/6l/l.h b/sys/src/cmd/6l/l.h
index 8947ecad5..6477e72f2 100644
--- a/sys/src/cmd/6l/l.h
+++ b/sys/src/cmd/6l/l.h
@@ -369,6 +369,7 @@ Prog*	brchain(Prog*);
 Prog*	brloop(Prog*);
 void	buildop(void);
 void	cflush(void);
+vlong	cpos(void);
 void	ckoff(Sym*, long);
 Prog*	copyp(Prog*);
 double	cputime(void);